29 December 2017

• 10:4910:49, 29 December 2017 diff hist +10 m 2011 AIME I Problems/Problem 15 →Solution 3
• 10:4810:48, 29 December 2017 diff hist +781 2011 AIME I Problems/Problem 15 3rd solution (shorter)!
• 10:4210:42, 29 December 2017 diff hist +1,959 2011 AIME I Problems/Problem 2 New solution

28 December 2017

• 18:3418:34, 28 December 2017 diff hist +599 2011 AIME I Problems/Problem 6 This is a new solution

25 December 2017

• 08:1808:18, 25 December 2017 diff hist −13 m 2009 AMC 12B Problems/Problem 14 →Solution 2